Future wireless systems are envisioned to create an endogenously holography-capable,
intelligent, and programmable radio propagation environment, that will offer unprecedented …

This paper is a critical review of metasurfaces, which are planar metamaterials.
Metamaterials offer bespoke electromagnetic applications and novel properties which are …

This paper presents new designs, implementation and experiments of metasurface (MTS)
antennas constituted by subwavelength elements printed on a grounded dielectric slab …

Metasurfaces, composed of 2-D planar arrays of sub-wavelength metallic or dielectric
scatterers, have provided unprecedented freedoms in manipulating electromagnetic (EM) …

We explore various possibilities for designing multibeam antennas using a single
metasurface (MTS) aperture. Both single-source and multisource feeding schemes are …

Different types of efficiencies are introduced for metasurface (MTS) antennas based on
single point-source excitation: 1) the feed efficiency ε feed is the power delivered by the feed …

Transformation optics asks, using Maxwell's equations, what kind of electromagnetic
medium recreates some smooth deformation of space? The guiding principle is Einstein's …

We demonstrate a series of nonlinear, active, and tunable metasurfaces for a variety of
electromagnetic applications. The metasurfaces have achieved a range of exotic properties …

We propose a method to generate microwave holograms using impedance metasurfaces for
multiple simultaneous wavelengths. For recent impedance hologram designs in the …

Linearly polarized (LP) multiport multibeam antennas (MBAs) based on modulated
metasurface (MTS) are presented in this article. A key challenge for MTS to generate …